Weighing supermassive black holes located in the center of galactic nuclei is more like looking through a solid brick wall, since matter in quantities of billions of times the mass of the Sun may stand in the way. Nonetheless, we are capable today to approximate the masses of supermassive black holes just by observin... |
9 April 2008
02:51 GMT |
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More than 42 years ago, Kenneth Greisen from Cornell University, Grorgiy Zatsepin and Vadim Kuzmin from Mascow Lebedev Institute of Physics independently predicted that cosmic rays emitted throughout the universe would never hit the Earth at their full strength due to collision with the Cosmic Microwave Background, r... |
25 March 2008
06:46 GMT |
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All known spiral galaxies have supermassive black holes at their center and our Milky Way is no different. However, observing a black hole is rather a difficult task, especially when it is situated in regions of space populated by large amounts of matter such as those in the galactic nuclei of active galaxies. The be... |
17 January 2008
02:47 GMT |
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The destructive jet particle emission is originated in the supermassive black hole situated in the center of the largest galaxy in the system, 3C321, and extends all the way to the closest galaxy about 20,000 light years away. This is the first jet particle emission observed originating in a galaxy and traveling all ... |
18 December 2007
02:55 GMT |
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Intergalactic matter jet streams can be found all over the universe, and usually span as long as hundreds of thousand light years in space. However, astronomers studying an elliptical galaxy found evidence of a jet stream spanning more than a million light years from its center. This record breaking structure could r... |
8 December 2007
03:40 GMT |
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By tracking our galaxy's movement through the vast immensity of space, astronomers found that the Milky Way is actually traveling with an excess speed of 120 kilometers per second, due to a mysterious gravitational pull exerted by an unseen body, which might be hiding away from our sight behind the galaxy's... |
30 November 2007
09:15 GMT |
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